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The heat flow through a unit area of the Earth’s surface is given by the product of: (-Gate geology and geophysics 2014)1 AnswerA confined sandy aquifer has a thickness of 10 m and transmissivity of 0.75 m2 per day. Its hydraulic conductivity is _____ m/day. (-Gate geology and geophysics 2014)1 AnswerMetal content (in metric tonnes) of an ore having specific gravity and assay values of 2.86 and 1.49 % respectively in a mining block 40 m long, 30 m wide and with an average thickness of 2.13 m is _______. (-Gate geology and geophysics 2014)1 AnswerIn vector calculus, Stoke’s theorem relates: (-Gate geology and geophysics 2014)1 AnswerThe S-wave velocity of a medium having a Poisson’s ratio and a P-wave velocity of 0.5 and 3 km/s respectively is _______km/s. (-Gate geology and geophysics 2014)1 AnswerIn a counter-flow heat exchanger, water is heated at the rate of 1.5kg/s from 40°C to 80°C by an oil entering at 120°C and leaving at 60°C. The specific heats of water and oil are 4.2kJ/kg/K and 2kJ/kg.K respectively. The overall heat transfer coefficient is 400 W/m2 .K. The required heat transfer surface area (in m2) is1 AnswerIn a counter-flow heat exchanger, water is heated at the rate of 1.5kg/s from 40°C to 80°C by an oil entering at 120°C and leaving at 60°C. The specific heats of water and oil are 4.2kJ/kg/K and 2kJ/kg.K respectively. The overall heat transfer coefficient is 400 W/m2 .K. The required heat transfer surface area (in m2) is1 AnswerConsider a parallel-flow heat exchanger with area 𝐴p and a counter-flow heat exchanger with area 𝐴c . In both the heat exchangers, the hot stream flowing at 1 kg/s cools from 80 C to 50 C. For the cold stream in both the heat exchangers, the fl1 AnswerT he angle of inclination of the remanent magnetization measured on a basalt flow at a location P (28N 85E) is 40. The palaeomagnetic latitude of the basalt flow is _______N.0 AnswerT he value of Eh corresponding to the upper limit of natural surface aqueous environment at pH of 8.0 is _____________ V.2 AnswerIn seismic prospecting, migration is the process of moving data elements from: (-Gate geology and geophysics 2014)1 AnswerWhich one of the following functions is used as a source-term to obtain the Green’s function of a boundary value problem? (-Gate geology and geophysics 2014)1 AnswerDrainage patterns observed in four areas are shown in black-and-white panchromatic images P, Q, R and S. Field work in these areas has indicated presence of the following lithology/geological unit. (-Gate geology and geophysics 2014)1 AnswerStream A with specific heat capacity CPA = 2000 J/(kg K) is cooled from 90 °C to 45 °Cin a concentric double pipe counter current heat exchanger having a heat transfer area of 8 m2 . The cold stream B of specific heat capacity CPB = 1000 J/(kg K) enters the exchanger at a flow rate 1 kg/s and 40 °C. The overall heat transfer coefficient U 250 W/(m2 K). Assume that the mean driving force is based on the arithmetic mean temperature difference, that is, , , , , 2 2 A in A out B in B out AMTD T T T T T where Ti in, and Ti out , refer to the temperature of the i th stream (i = A, B) at the inlet and exit, respectively. The mass flow rate of stream A (in kg/s), is _______________ (rounded off to two decimal places).0 AnswerFrom the surface to the Earth’s interior, the velocity of P-wave decreases and the material density increases at the boundary between: (-Gate geology and geophysics 2014)1 AnswerA sandstone bed whose attitude is 090°, 30° is exposed on a flat surface. The true thickness of the bed is 100 m. The width of the outcrop of the sandstone bed along a N-S traverse on the ground is ________ m. -gate Geology & Geophysics 2017 1 AnswerA horizontally travelling surface wave with a wavelength of 20 m is attenuated by a linear and uniform receiver array consisting of 4 receivers if the minimum receiver spacing is ________ m.0 AnswerS team in the condenser of a thermal power plant is to be condensed at a temperature of 30C with cooling water which enters the tubes of the condenser at 14C and exits at 22C. The total surface area of the tubes is 50 m2, and the overall heat transfer coefficient is 2000 W/m2 K. The heat transfer (in MW) to the condenser is ______ (correct to two decimal places).1 Answer A landform that results from free fall of rocks is called -gate Geology & Geophysics 20171 AnswerOne unit of product P1 requires 3 kg of resource R1 and 1kg of resourceR2 . -gate-mechanical-20111 Answer
Gate Geology and Geophysics 2014gate 2018 GEOLOGY AND GEOPHYSICSGATE-Geology and Geophysics-Question-2012AG2211 APPLIED GEOLOGY EC - Electronics and Communication EngineeringEE - Electrical EngineeringME - Mechanical EngineeringBTDCE 2050 FINITE ELEMENT TECHNIQUESVTU SYLLABUS 2010 (Civil) APPLIED ENGINEERING GEOLOGY 10CV36 Engineering